Problem with MOBI files on Cybook Gen3- unexpected reboots

Murphy · 05-09-2011, 07:41 AM

Help! Initially all seemed fine, but now having problems. Have tried on 2 computers with same thing happening. I use Bookeen Cybook Gen 3 and mobi/prc. Some books that I send to my Cybook load OK but when I read them and get last few pages Cybook reboots and it is impossible to access the last 5-10 pages. Try Go to last page on Cybook contents menu and Cybook reboots! Have tried this with a number of books, some work and some do not. Have re-installed v08 but this did not solve it. No changes to my Cybook.

Manichean · 05-09-2011, 09:00 AM

Moderator Notice
Moved out of 0.8 congratulations thread into its own thread. Please open new threads for new problems

I've sometimes seen similar behaviour with my ePub firmware Cybook. I was (mostly) able to fix this by either changing conversion options and reconverting or fixing some offending HTML inside the ePub.
What this boils down to is that it is most probably due to a faulty conversion source and almost certainly not due to a Calibre bug, though to be sure, you'd have to look at the MOBI file(s). If you're converting, what format are you converting from?
You could try asking in the MOBI forum section.

Murphy · 05-09-2011, 09:26 AM

Thank you Manichean. Sorry for putting it in wrong place.

The books all worked OK before I upgraded to ver 0.8
I am not comfortabe with trying to do anything with HTML.
There were .prc format - no conversion needed
I will look in Mobi forum but for now would prefer to revert to previous version of Calibre - if I knew how to do that - can you tell me where to find instruction on this?

Manichean · 05-09-2011, 09:38 AM

Just to be sure: You previously loaded the books onto the device, with no conversion, using a 0.7.x version of Calibre, and they worked? And you reloaded them, again with no conversion, using 0.8.0, and they were broken?

Downgrading is generally not recommended, nor is it officially supported. There are, sometimes, database changes that break compatability with previous versions.
If you want to downgrade, however, you can find all previous versions of Calibre on the projects' Sourceforge page. Be sure to uninstall Calibre (this won't touch your settings or your library) before reinstalling an older version. You should also bear in mind that this can potentially break things. Another thing to keep in mind is that if you downgrade, you can't help any developers asking for additional info, so the bug, if it is one, may not be found.

theducks · 05-09-2011, 09:54 AM

Some Mobi and LIT do that on my PEz

(Probably something in the file it chokes on. Being Mobi, it is hard to see

with the tools I have)
That is why I switched to EPUB. At least I have tools to dig into the problem

Murphy · 05-09-2011, 09:57 AM

Yes, previously downloaded with no conversion an worked in Calibre 0.7x versions.
However, just to complicate matters further, the books work fine in the ereader in Calibre and in mobireader.
I tried re-formatting my cybook card and re-installing that in case something funny had happened with that, but no difference. Some books work ok, others re-boot at last few pages.
Well, I have just found a solution. Some .prc books needs to be run through Calibre convert to mobi format. Then delete the prc version from Calibre library. Then send it to Cybook. Then it works! Weird!
But never had this problem before v0.8

kovidgoyal · 05-09-2011, 11:05 AM

There have been no changes to MOBI output in 0.80 compared to 0.7.58

05-09-2011, 07:41 AM	#1
Murphy Member Posts: 18 Karma: 10 Join Date: Jan 2008 Device: Kobo Touch	Problem with MOBI files on Cybook Gen3- unexpected reboots Help! Initially all seemed fine, but now having problems. Have tried on 2 computers with same thing happening. I use Bookeen Cybook Gen 3 and mobi/prc. Some books that I send to my Cybook load OK but when I read them and get last few pages Cybook reboots and it is impossible to access the last 5-10 pages. Try Go to last page on Cybook contents menu and Cybook reboots! Have tried this with a number of books, some work and some do not. Have re-installed v08 but this did not solve it. No changes to my Cybook.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
problem with fonts after firmware update on Cybook Gen3	cruzes	Bookeen	15	04-09-2010 04:49 AM
pdf viewing problem - Cybook Gen3- new firmware	anandanjoy	Gen3 Developer's Corner	2	04-02-2010 01:20 PM
Problem with epub output in Cybook Gen3	fjf	Calibre	3	02-03-2010 02:23 AM
Cybook gen3 problem with vista	Cino	Bookeen	25	09-24-2009 04:29 AM
A request: Complex PDF files in Cybook Gen3 firmware 796?	calvarez	Bookeen	7	05-27-2009 05:32 AM

05-09-2011, 09:00 AM	#2
Manichean Wizard Posts: 3,130 Karma: 91256 Join Date: Feb 2008 Location: Germany Device: Cybook Gen3	Moderator Notice Moved out of 0.8 congratulations thread into its own thread. Please open new threads for new problems I've sometimes seen similar behaviour with my ePub firmware Cybook. I was (mostly) able to fix this by either changing conversion options and reconverting or fixing some offending HTML inside the ePub. What this boils down to is that it is most probably due to a faulty conversion source and almost certainly not due to a Calibre bug, though to be sure, you'd have to look at the MOBI file(s). If you're converting, what format are you converting from? You could try asking in the MOBI forum section.

05-09-2011, 09:26 AM	#3
Murphy Member Posts: 18 Karma: 10 Join Date: Jan 2008 Device: Kobo Touch	Thank you Manichean. Sorry for putting it in wrong place. The books all worked OK before I upgraded to ver 0.8 I am not comfortabe with trying to do anything with HTML. There were .prc format - no conversion needed I will look in Mobi forum but for now would prefer to revert to previous version of Calibre - if I knew how to do that - can you tell me where to find instruction on this?

05-09-2011, 09:38 AM	#4
Manichean Wizard Posts: 3,130 Karma: 91256 Join Date: Feb 2008 Location: Germany Device: Cybook Gen3	Just to be sure: You previously loaded the books onto the device, with no conversion, using a 0.7.x version of Calibre, and they worked? And you reloaded them, again with no conversion, using 0.8.0, and they were broken? Downgrading is generally not recommended, nor is it officially supported. There are, sometimes, database changes that break compatability with previous versions. If you want to downgrade, however, you can find all previous versions of Calibre on the projects' Sourceforge page. Be sure to uninstall Calibre (this won't touch your settings or your library) before reinstalling an older version. You should also bear in mind that this can potentially break things. Another thing to keep in mind is that if you downgrade, you can't help any developers asking for additional info, so the bug, if it is one, may not be found.

05-09-2011, 09:54 AM	#5
theducks Well trained by Cats Posts: 29,792 Karma: 54830978 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	Some Mobi and LIT do that on my PEz (Probably something in the file it chokes on. Being Mobi, it is hard to see with the tools I have) That is why I switched to EPUB. At least I have tools to dig into the problem

05-09-2011, 09:57 AM	#6
Murphy Member Posts: 18 Karma: 10 Join Date: Jan 2008 Device: Kobo Touch	Yes, previously downloaded with no conversion an worked in Calibre 0.7x versions. However, just to complicate matters further, the books work fine in the ereader in Calibre and in mobireader. I tried re-formatting my cybook card and re-installing that in case something funny had happened with that, but no difference. Some books work ok, others re-boot at last few pages. Well, I have just found a solution. Some .prc books needs to be run through Calibre convert to mobi format. Then delete the prc version from Calibre library. Then send it to Cybook. Then it works! Weird! But never had this problem before v0.8

05-09-2011, 11:05 AM	#7
kovidgoyal creator of calibre Posts: 43,850 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	There have been no changes to MOBI output in 0.80 compared to 0.7.58

Advert

Advert